Stark; Marvin
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stark; Marvin.The latest application filed is for "railway hopper car roof support structure".
- Stark; Marvin - Houston TX
- Stark; Marvin - Michigan City IN
| Patent | Date |
|---|---|
| Railway hopper car roof support structure Grant RE32,189 - Adler , et al. June 24, 1 | 1986-06-24 |
| Railroad tank car lift lug Grant 4,407,203 - Harbin , et al. October 4, 1 | 1983-10-04 |
| Side wall for railway hopper car Grant 4,252,067 - Stark February 24, 1 | 1981-02-24 |
| Dual hopper car doors Grant 4,250,814 - Stark , et al. February 17, 1 | 1981-02-17 |
| Railway hopper car closure actuating mechanism Grant 4,224,877 - Stark , et al. September 30, 1 | 1980-09-30 |
| Cam operated hatch cover holddown Grant 4,057,020 - Halliar , et al. November 8, 1 | 1977-11-08 |
| Trough hatch locking device Grant 4,046,082 - Tedesco , et al. September 6, 1 | 1977-09-06 |
| Trough Hatch Locking Device Grant 3,800,714 - Stark , et al. April 2, 1 | 1974-04-02 |
| Covered Hopper Car With Hatch Cover Means Grant 3,664,270 - Stark , et al. May 23, 1 | 1972-05-23 |
| End-of-railway-car Cushioning Installation Grant 3,583,573 - Knippel , et al. June 8, 1 | 1971-06-08 |
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